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Finding the Fourth Proportional to 1,079,601, 1,489,980.60 and 626,892

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Solution

The fourth proportional to 1,079,601, 1,489,980.60 and 626,892 is: 865,187.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,601 : 1,489,980.60 = 626,892 : x
  2. Step 2: Convert to fraction form
    1,079,601/1,489,980.60 = 626,892/x
  3. Step 3: Cross multiply
    1,079,601x = 1,489,980.60 × 626,892
  4. Step 4: Simplify right side
    1,079,601x = 934,056,918,295.20
  5. Step 5: Solve for x
    x = 934,056,918,295.20/1,079,601
  6. Step 6: Final answer
    x = 865,187.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.